Outlines of AstronomyBlanchard & Lea, 1860 - 557 pages |
From inside the book
Results 1-5 of 100
Page xii
... Mean and true longi- tudes of the Sun. Equation of the centre . Sidereal , tropical , and anoma- listic years . Physical constitution of the Sun. Its spots . Faculæ . Probable nature and causo of the spots . Atmosphere of the Sun. Its ...
... Mean and true longi- tudes of the Sun. Equation of the centre . Sidereal , tropical , and anoma- listic years . Physical constitution of the Sun. Its spots . Faculæ . Probable nature and causo of the spots . Atmosphere of the Sun. Its ...
Page xiv
... mean distances and periods . Theory of the Perihelia and Excentricities . Geometrical representation of their mo- mentary variations . Estimation of the disturbing forces in nearly circular orbits . Application to the case of the Moon ...
... mean distances and periods . Theory of the Perihelia and Excentricities . Geometrical representation of their mo- mentary variations . Estimation of the disturbing forces in nearly circular orbits . Application to the case of the Moon ...
Page 40
... mean state , the amount of refraction is greater than its mean amount ; when lower , less ; and , 6thly . That in one and the same state of the barometer the refrac- tion is greater , the colder the air . The variation , owing to these ...
... mean state , the amount of refraction is greater than its mean amount ; when lower , less ; and , 6thly . That in one and the same state of the barometer the refrac- tion is greater , the colder the air . The variation , owing to these ...
Page 44
... means of judging of their distances from him , would refer them , in the directions in which they were seen from his station , to the concave sur- face of an imaginary sphere , having his eye for a centre , and its surface at some vast ...
... means of judging of their distances from him , would refer them , in the directions in which they were seen from his station , to the concave sur- face of an imaginary sphere , having his eye for a centre , and its surface at some vast ...
Page 80
... mean or average of the results obtained , this class of errors may be so far subdued , by setting them to destroy ... means of detection of all mechanical defects which elude by their minuteness every other mode of detection . What the ...
... mean or average of the results obtained , this class of errors may be so far subdued , by setting them to destroy ... means of detection of all mechanical defects which elude by their minuteness every other mode of detection . What the ...
Other editions - View all
Common terms and phrases
altitude amount angle angular appear apsides ascertained astronomers axis bright calculation celestial centre circle comet curve described diameter difference direction disc distance disturbed body disturbing force diurnal diurnal motion double stars earth ecliptic effect ellipse epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity greater heavens heliocentric horizon inclination increase inequality instance instrument interval Jupiter latitude latter less light longitude lunar magnitude mass mean measure meridian moon moon's motion nearly nebula node normal force nutation object observed orbit parallax parallel perigee perihelion period perpendicular perturbations planet planetary pole portion position precession proper motions proportion recede recess reckoned refraction remarkable respect result revolution right ascension rotation round satellites Saturn seen sidereal sidereal day sidereal period situation solar sphere spherical stars station sun's suppose syzygies tangential force telescope tion Uranus variation velocity visible whole zenith